公开(公告)号：US20180311731A1

公开(公告)日：2018-11-01

申请号：US15497832

申请日：2017-04-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： John P. SPICER ,  Jason J. NOLTE ,  Thomas A. PERRY ,  Blair E. Carlson ,  Anil K. SACHDEV ,  HyungMin CHAE ,  Mark A. SMITH

IPC: B22F3/105 ,  B29C67/00 ,  B28B1/00 ,  B33Y30/00 ,  B33Y40/00

Abstract: An additive manufacturing system has a powder delivery system for presenting a powder material to a build chamber. A laser selectively sinters the powder material in the build chamber. The build chamber is presented in an annular configuration with the powder delivery system and laser arranged within a central portion thereof.